return 0;
}
-static void qedr_cleanup_user_sq(struct qedr_dev *dev, struct qedr_qp *qp)
-{
- qedr_free_pbl(dev, &qp->usq.pbl_info, qp->usq.pbl_tbl);
- ib_umem_release(qp->usq.umem);
-}
-
-static void qedr_cleanup_user_rq(struct qedr_dev *dev, struct qedr_qp *qp)
-{
- qedr_free_pbl(dev, &qp->urq.pbl_info, qp->urq.pbl_tbl);
- ib_umem_release(qp->urq.umem);
-}
-
-static void qedr_cleanup_kernel_sq(struct qedr_dev *dev, struct qedr_qp *qp)
-{
- dev->ops->common->chain_free(dev->cdev, &qp->sq.pbl);
- kfree(qp->wqe_wr_id);
-}
-
-static void qedr_cleanup_kernel_rq(struct qedr_dev *dev, struct qedr_qp *qp)
-{
- dev->ops->common->chain_free(dev->cdev, &qp->rq.pbl);
- kfree(qp->rqe_wr_id);
-}
-
static int qedr_check_qp_attrs(struct ib_pd *ibpd, struct qedr_dev *dev,
struct ib_qp_init_attr *attrs)
{
return rc;
}
-static void qedr_set_qp_init_params(struct qedr_dev *dev,
- struct qedr_qp *qp,
- struct qedr_pd *pd,
- struct ib_qp_init_attr *attrs)
+static void qedr_set_common_qp_params(struct qedr_dev *dev,
+ struct qedr_qp *qp,
+ struct qedr_pd *pd,
+ struct ib_qp_init_attr *attrs)
{
- qp->pd = pd;
-
spin_lock_init(&qp->q_lock);
-
+ qp->pd = pd;
qp->qp_type = attrs->qp_type;
qp->max_inline_data = attrs->cap.max_inline_data;
qp->sq.max_sges = attrs->cap.max_send_sge;
qp->sq_cq = get_qedr_cq(attrs->send_cq);
qp->rq_cq = get_qedr_cq(attrs->recv_cq);
qp->dev = dev;
+ qp->rq.max_sges = attrs->cap.max_recv_sge;
DP_DEBUG(dev, QEDR_MSG_QP,
+ "RQ params:\trq_max_sges = %d, rq_cq_id = %d\n",
+ qp->rq.max_sges, qp->rq_cq->icid);
+ DP_DEBUG(dev, QEDR_MSG_QP,
"QP params:\tpd = %d, qp_type = %d, max_inline_data = %d, state = %d, signaled = %d, use_srq=%d\n",
pd->pd_id, qp->qp_type, qp->max_inline_data,
qp->state, qp->signaled, (attrs->srq) ? 1 : 0);
DP_DEBUG(dev, QEDR_MSG_QP,
"SQ params:\tsq_max_sges = %d, sq_cq_id = %d\n",
qp->sq.max_sges, qp->sq_cq->icid);
- qp->rq.max_sges = attrs->cap.max_recv_sge;
- DP_DEBUG(dev, QEDR_MSG_QP,
- "RQ params:\trq_max_sges = %d, rq_cq_id = %d\n",
- qp->rq.max_sges, qp->rq_cq->icid);
}
-static inline void
-qedr_init_qp_user_params(struct qed_rdma_create_qp_in_params *params,
- struct qedr_create_qp_ureq *ureq)
-{
- /* QP handle to be written in CQE */
- params->qp_handle_lo = ureq->qp_handle_lo;
- params->qp_handle_hi = ureq->qp_handle_hi;
-}
-
-static inline void
-qedr_init_qp_kernel_doorbell_sq(struct qedr_dev *dev, struct qedr_qp *qp)
+static void qedr_set_roce_db_info(struct qedr_dev *dev, struct qedr_qp *qp)
{
qp->sq.db = dev->db_addr +
DB_ADDR_SHIFT(DQ_PWM_OFFSET_XCM_RDMA_SQ_PROD);
qp->sq.db_data.data.icid = qp->icid + 1;
+ qp->rq.db = dev->db_addr +
+ DB_ADDR_SHIFT(DQ_PWM_OFFSET_TCM_ROCE_RQ_PROD);
+ qp->rq.db_data.data.icid = qp->icid;
}
static inline void
-qedr_init_qp_kernel_doorbell_rq(struct qedr_dev *dev, struct qedr_qp *qp)
+qedr_init_common_qp_in_params(struct qedr_dev *dev,
+ struct qedr_pd *pd,
+ struct qedr_qp *qp,
+ struct ib_qp_init_attr *attrs,
+ bool fmr_and_reserved_lkey,
+ struct qed_rdma_create_qp_in_params *params)
{
- qp->rq.db = dev->db_addr +
- DB_ADDR_SHIFT(DQ_PWM_OFFSET_TCM_ROCE_RQ_PROD);
- qp->rq.db_data.data.icid = qp->icid;
+ /* QP handle to be written in an async event */
+ params->qp_handle_async_lo = lower_32_bits((uintptr_t) qp);
+ params->qp_handle_async_hi = upper_32_bits((uintptr_t) qp);
+
+ params->signal_all = (attrs->sq_sig_type == IB_SIGNAL_ALL_WR);
+ params->fmr_and_reserved_lkey = fmr_and_reserved_lkey;
+ params->pd = pd->pd_id;
+ params->dpi = pd->uctx ? pd->uctx->dpi : dev->dpi;
+ params->sq_cq_id = get_qedr_cq(attrs->send_cq)->icid;
+ params->stats_queue = 0;
+ params->rq_cq_id = get_qedr_cq(attrs->recv_cq)->icid;
+ params->srq_id = 0;
+ params->use_srq = false;
}
-static inline int
-qedr_init_qp_kernel_params_rq(struct qedr_dev *dev,
- struct qedr_qp *qp, struct ib_qp_init_attr *attrs)
+static inline void qedr_qp_user_print(struct qedr_dev *dev, struct qedr_qp *qp)
{
- /* Allocate driver internal RQ array */
- qp->rqe_wr_id = kcalloc(qp->rq.max_wr, sizeof(*qp->rqe_wr_id),
- GFP_KERNEL);
- if (!qp->rqe_wr_id)
- return -ENOMEM;
+ DP_DEBUG(dev, QEDR_MSG_QP, "create qp: successfully created user QP. "
+ "qp=%p. "
+ "sq_addr=0x%llx, "
+ "sq_len=%zd, "
+ "rq_addr=0x%llx, "
+ "rq_len=%zd"
+ "\n",
+ qp,
+ qp->usq.buf_addr,
+ qp->usq.buf_len, qp->urq.buf_addr, qp->urq.buf_len);
+}
- DP_DEBUG(dev, QEDR_MSG_QP, "RQ max_wr set to %d.\n", qp->rq.max_wr);
+static void qedr_cleanup_user(struct qedr_dev *dev, struct qedr_qp *qp)
+{
+ if (qp->usq.umem)
+ ib_umem_release(qp->usq.umem);
+ qp->usq.umem = NULL;
- return 0;
+ if (qp->urq.umem)
+ ib_umem_release(qp->urq.umem);
+ qp->urq.umem = NULL;
}
-static inline int
-qedr_init_qp_kernel_params_sq(struct qedr_dev *dev,
- struct qedr_qp *qp,
- struct ib_qp_init_attr *attrs,
- struct qed_rdma_create_qp_in_params *params)
+static int qedr_create_user_qp(struct qedr_dev *dev,
+ struct qedr_qp *qp,
+ struct ib_pd *ibpd,
+ struct ib_udata *udata,
+ struct ib_qp_init_attr *attrs)
{
- u32 temp_max_wr;
+ struct qed_rdma_create_qp_in_params in_params;
+ struct qed_rdma_create_qp_out_params out_params;
+ struct qedr_pd *pd = get_qedr_pd(ibpd);
+ struct ib_ucontext *ib_ctx = NULL;
+ struct qedr_ucontext *ctx = NULL;
+ struct qedr_create_qp_ureq ureq;
+ int rc = -EINVAL;
- /* Allocate driver internal SQ array */
- temp_max_wr = attrs->cap.max_send_wr * dev->wq_multiplier;
- temp_max_wr = min_t(u32, temp_max_wr, dev->attr.max_sqe);
+ ib_ctx = ibpd->uobject->context;
+ ctx = get_qedr_ucontext(ib_ctx);
- /* temp_max_wr < attr->max_sqe < u16 so the casting is safe */
- qp->sq.max_wr = (u16)temp_max_wr;
- qp->wqe_wr_id = kcalloc(qp->sq.max_wr, sizeof(*qp->wqe_wr_id),
- GFP_KERNEL);
- if (!qp->wqe_wr_id)
- return -ENOMEM;
+ memset(&ureq, 0, sizeof(ureq));
+ rc = ib_copy_from_udata(&ureq, udata, sizeof(ureq));
+ if (rc) {
+ DP_ERR(dev, "Problem copying data from user space\n");
+ return rc;
+ }
- DP_DEBUG(dev, QEDR_MSG_QP, "SQ max_wr set to %d.\n", qp->sq.max_wr);
+ /* SQ - read access only (0), dma sync not required (0) */
+ rc = qedr_init_user_queue(ib_ctx, dev, &qp->usq, ureq.sq_addr,
+ ureq.sq_len, 0, 0);
+ if (rc)
+ return rc;
- /* QP handle to be written in CQE */
- params->qp_handle_lo = lower_32_bits((uintptr_t)qp);
- params->qp_handle_hi = upper_32_bits((uintptr_t)qp);
+ /* RQ - read access only (0), dma sync not required (0) */
+ rc = qedr_init_user_queue(ib_ctx, dev, &qp->urq, ureq.rq_addr,
+ ureq.rq_len, 0, 0);
+
+ if (rc)
+ return rc;
+
+ memset(&in_params, 0, sizeof(in_params));
+ qedr_init_common_qp_in_params(dev, pd, qp, attrs, false, &in_params);
+ in_params.qp_handle_lo = ureq.qp_handle_lo;
+ in_params.qp_handle_hi = ureq.qp_handle_hi;
+ in_params.sq_num_pages = qp->usq.pbl_info.num_pbes;
+ in_params.sq_pbl_ptr = qp->usq.pbl_tbl->pa;
+ in_params.rq_num_pages = qp->urq.pbl_info.num_pbes;
+ in_params.rq_pbl_ptr = qp->urq.pbl_tbl->pa;
+
+ qp->qed_qp = dev->ops->rdma_create_qp(dev->rdma_ctx,
+ &in_params, &out_params);
+
+ if (!qp->qed_qp) {
+ rc = -ENOMEM;
+ goto err1;
+ }
+
+ qp->qp_id = out_params.qp_id;
+ qp->icid = out_params.icid;
+
+ rc = qedr_copy_qp_uresp(dev, qp, udata);
+ if (rc)
+ goto err;
+
+ qedr_qp_user_print(dev, qp);
return 0;
+err:
+ rc = dev->ops->rdma_destroy_qp(dev->rdma_ctx, qp->qed_qp);
+ if (rc)
+ DP_ERR(dev, "create qp: fatal fault. rc=%d", rc);
+
+err1:
+ qedr_cleanup_user(dev, qp);
+ return rc;
}
-static inline int qedr_init_qp_kernel_sq(struct qedr_dev *dev,
- struct qedr_qp *qp,
- struct ib_qp_init_attr *attrs)
+static int
+qedr_roce_create_kernel_qp(struct qedr_dev *dev,
+ struct qedr_qp *qp,
+ struct qed_rdma_create_qp_in_params *in_params,
+ u32 n_sq_elems, u32 n_rq_elems)
{
- u32 n_sq_elems, n_sq_entries;
+ struct qed_rdma_create_qp_out_params out_params;
int rc;
- /* A single work request may take up to QEDR_MAX_SQ_WQE_SIZE elements in
- * the ring. The ring should allow at least a single WR, even if the
- * user requested none, due to allocation issues.
- */
- n_sq_entries = attrs->cap.max_send_wr;
- n_sq_entries = min_t(u32, n_sq_entries, dev->attr.max_sqe);
- n_sq_entries = max_t(u32, n_sq_entries, 1);
- n_sq_elems = n_sq_entries * QEDR_MAX_SQE_ELEMENTS_PER_SQE;
rc = dev->ops->common->chain_alloc(dev->cdev,
QED_CHAIN_USE_TO_PRODUCE,
QED_CHAIN_MODE_PBL,
n_sq_elems,
QEDR_SQE_ELEMENT_SIZE,
&qp->sq.pbl);
- if (rc) {
- DP_ERR(dev, "failed to allocate QP %p SQ\n", qp);
- return rc;
- }
- DP_DEBUG(dev, QEDR_MSG_SQ,
- "SQ Pbl base addr = %llx max_send_wr=%d max_wr=%d capacity=%d, rc=%d\n",
- qed_chain_get_pbl_phys(&qp->sq.pbl), attrs->cap.max_send_wr,
- n_sq_entries, qed_chain_get_capacity(&qp->sq.pbl), rc);
- return 0;
-}
+ if (rc)
+ return rc;
-static inline int qedr_init_qp_kernel_rq(struct qedr_dev *dev,
- struct qedr_qp *qp,
- struct ib_qp_init_attr *attrs)
-{
- u32 n_rq_elems, n_rq_entries;
- int rc;
+ in_params->sq_num_pages = qed_chain_get_page_cnt(&qp->sq.pbl);
+ in_params->sq_pbl_ptr = qed_chain_get_pbl_phys(&qp->sq.pbl);
- /* A single work request may take up to QEDR_MAX_RQ_WQE_SIZE elements in
- * the ring. There ring should allow at least a single WR, even if the
- * user requested none, due to allocation issues.
- */
- n_rq_entries = max_t(u32, attrs->cap.max_recv_wr, 1);
- n_rq_elems = n_rq_entries * QEDR_MAX_RQE_ELEMENTS_PER_RQE;
rc = dev->ops->common->chain_alloc(dev->cdev,
QED_CHAIN_USE_TO_CONSUME_PRODUCE,
QED_CHAIN_MODE_PBL,
n_rq_elems,
QEDR_RQE_ELEMENT_SIZE,
&qp->rq.pbl);
+ if (rc)
+ return rc;
- if (rc) {
- DP_ERR(dev, "failed to allocate memory for QP %p RQ\n", qp);
- return -ENOMEM;
- }
-
- DP_DEBUG(dev, QEDR_MSG_RQ,
- "RQ Pbl base addr = %llx max_recv_wr=%d max_wr=%d capacity=%d, rc=%d\n",
- qed_chain_get_pbl_phys(&qp->rq.pbl), attrs->cap.max_recv_wr,
- n_rq_entries, qed_chain_get_capacity(&qp->rq.pbl), rc);
+ in_params->rq_num_pages = qed_chain_get_page_cnt(&qp->rq.pbl);
+ in_params->rq_pbl_ptr = qed_chain_get_pbl_phys(&qp->rq.pbl);
- /* n_rq_entries < u16 so the casting is safe */
- qp->rq.max_wr = (u16)n_rq_entries;
+ qp->qed_qp = dev->ops->rdma_create_qp(dev->rdma_ctx,
+ in_params, &out_params);
- return 0;
-}
+ if (!qp->qed_qp)
+ return -EINVAL;
-static inline void
-qedr_init_qp_in_params_sq(struct qedr_dev *dev,
- struct qedr_pd *pd,
- struct qedr_qp *qp,
- struct ib_qp_init_attr *attrs,
- struct ib_udata *udata,
- struct qed_rdma_create_qp_in_params *params)
-{
- /* QP handle to be written in an async event */
- params->qp_handle_async_lo = lower_32_bits((uintptr_t)qp);
- params->qp_handle_async_hi = upper_32_bits((uintptr_t)qp);
+ qp->qp_id = out_params.qp_id;
+ qp->icid = out_params.icid;
- params->signal_all = (attrs->sq_sig_type == IB_SIGNAL_ALL_WR);
- params->fmr_and_reserved_lkey = !udata;
- params->pd = pd->pd_id;
- params->dpi = pd->uctx ? pd->uctx->dpi : dev->dpi;
- params->sq_cq_id = get_qedr_cq(attrs->send_cq)->icid;
- params->max_sq_sges = 0;
- params->stats_queue = 0;
+ qedr_set_roce_db_info(dev, qp);
- if (udata) {
- params->sq_num_pages = qp->usq.pbl_info.num_pbes;
- params->sq_pbl_ptr = qp->usq.pbl_tbl->pa;
- } else {
- params->sq_num_pages = qed_chain_get_page_cnt(&qp->sq.pbl);
- params->sq_pbl_ptr = qed_chain_get_pbl_phys(&qp->sq.pbl);
- }
+ return 0;
}
-static inline void
-qedr_init_qp_in_params_rq(struct qedr_qp *qp,
- struct ib_qp_init_attr *attrs,
- struct ib_udata *udata,
- struct qed_rdma_create_qp_in_params *params)
+static void qedr_cleanup_kernel(struct qedr_dev *dev, struct qedr_qp *qp)
{
- params->rq_cq_id = get_qedr_cq(attrs->recv_cq)->icid;
- params->srq_id = 0;
- params->use_srq = false;
+ dev->ops->common->chain_free(dev->cdev, &qp->sq.pbl);
+ kfree(qp->wqe_wr_id);
- if (udata) {
- params->rq_num_pages = qp->urq.pbl_info.num_pbes;
- params->rq_pbl_ptr = qp->urq.pbl_tbl->pa;
- } else {
- params->rq_num_pages = qed_chain_get_page_cnt(&qp->rq.pbl);
- params->rq_pbl_ptr = qed_chain_get_pbl_phys(&qp->rq.pbl);
- }
+ dev->ops->common->chain_free(dev->cdev, &qp->rq.pbl);
+ kfree(qp->rqe_wr_id);
}
-static inline void qedr_qp_user_print(struct qedr_dev *dev, struct qedr_qp *qp)
+static int qedr_create_kernel_qp(struct qedr_dev *dev,
+ struct qedr_qp *qp,
+ struct ib_pd *ibpd,
+ struct ib_qp_init_attr *attrs)
{
- DP_DEBUG(dev, QEDR_MSG_QP,
- "create qp: successfully created user QP. qp=%p, sq_addr=0x%llx, sq_len=%zd, rq_addr=0x%llx, rq_len=%zd\n",
- qp, qp->usq.buf_addr, qp->usq.buf_len, qp->urq.buf_addr,
- qp->urq.buf_len);
-}
+ struct qed_rdma_create_qp_in_params in_params;
+ struct qedr_pd *pd = get_qedr_pd(ibpd);
+ int rc = -EINVAL;
+ u32 n_rq_elems;
+ u32 n_sq_elems;
+ u32 n_sq_entries;
-static inline int qedr_init_user_qp(struct ib_ucontext *ib_ctx,
- struct qedr_dev *dev,
- struct qedr_qp *qp,
- struct qedr_create_qp_ureq *ureq)
-{
- int rc;
+ memset(&in_params, 0, sizeof(in_params));
- /* SQ - read access only (0), dma sync not required (0) */
- rc = qedr_init_user_queue(ib_ctx, dev, &qp->usq, ureq->sq_addr,
- ureq->sq_len, 0, 0);
- if (rc)
- return rc;
+ /* A single work request may take up to QEDR_MAX_SQ_WQE_SIZE elements in
+ * the ring. The ring should allow at least a single WR, even if the
+ * user requested none, due to allocation issues.
+ * We should add an extra WR since the prod and cons indices of
+ * wqe_wr_id are managed in such a way that the WQ is considered full
+ * when (prod+1)%max_wr==cons. We currently don't do that because we
+ * double the number of entries due an iSER issue that pushes far more
+ * WRs than indicated. If we decline its ib_post_send() then we get
+ * error prints in the dmesg we'd like to avoid.
+ */
+ qp->sq.max_wr = min_t(u32, attrs->cap.max_send_wr * dev->wq_multiplier,
+ dev->attr.max_sqe);
- /* RQ - read access only (0), dma sync not required (0) */
- rc = qedr_init_user_queue(ib_ctx, dev, &qp->urq, ureq->rq_addr,
- ureq->rq_len, 0, 0);
+ qp->wqe_wr_id = kzalloc(qp->sq.max_wr * sizeof(*qp->wqe_wr_id),
+ GFP_KERNEL);
+ if (!qp->wqe_wr_id) {
+ DP_ERR(dev, "create qp: failed SQ shadow memory allocation\n");
+ return -ENOMEM;
+ }
- if (rc)
- qedr_cleanup_user_sq(dev, qp);
- return rc;
-}
+ /* QP handle to be written in CQE */
+ in_params.qp_handle_lo = lower_32_bits((uintptr_t) qp);
+ in_params.qp_handle_hi = upper_32_bits((uintptr_t) qp);
-static inline int
-qedr_init_kernel_qp(struct qedr_dev *dev,
- struct qedr_qp *qp,
- struct ib_qp_init_attr *attrs,
- struct qed_rdma_create_qp_in_params *params)
-{
- int rc;
+ /* A single work request may take up to QEDR_MAX_RQ_WQE_SIZE elements in
+ * the ring. There ring should allow at least a single WR, even if the
+ * user requested none, due to allocation issues.
+ */
+ qp->rq.max_wr = (u16) max_t(u32, attrs->cap.max_recv_wr, 1);
- rc = qedr_init_qp_kernel_sq(dev, qp, attrs);
- if (rc) {
- DP_ERR(dev, "failed to init kernel QP %p SQ\n", qp);
- return rc;
+ /* Allocate driver internal RQ array */
+ qp->rqe_wr_id = kzalloc(qp->rq.max_wr * sizeof(*qp->rqe_wr_id),
+ GFP_KERNEL);
+ if (!qp->rqe_wr_id) {
+ DP_ERR(dev,
+ "create qp: failed RQ shadow memory allocation\n");
+ kfree(qp->wqe_wr_id);
+ return -ENOMEM;
}
- rc = qedr_init_qp_kernel_params_sq(dev, qp, attrs, params);
- if (rc) {
- dev->ops->common->chain_free(dev->cdev, &qp->sq.pbl);
- DP_ERR(dev, "failed to init kernel QP %p SQ params\n", qp);
- return rc;
- }
+ qedr_init_common_qp_in_params(dev, pd, qp, attrs, true, &in_params);
- rc = qedr_init_qp_kernel_rq(dev, qp, attrs);
- if (rc) {
- qedr_cleanup_kernel_sq(dev, qp);
- DP_ERR(dev, "failed to init kernel QP %p RQ\n", qp);
- return rc;
- }
+ n_sq_entries = attrs->cap.max_send_wr;
+ n_sq_entries = min_t(u32, n_sq_entries, dev->attr.max_sqe);
+ n_sq_entries = max_t(u32, n_sq_entries, 1);
+ n_sq_elems = n_sq_entries * QEDR_MAX_SQE_ELEMENTS_PER_SQE;
- rc = qedr_init_qp_kernel_params_rq(dev, qp, attrs);
- if (rc) {
- DP_ERR(dev, "failed to init kernel QP %p RQ params\n", qp);
- qedr_cleanup_kernel_sq(dev, qp);
- dev->ops->common->chain_free(dev->cdev, &qp->rq.pbl);
- return rc;
- }
+ n_rq_elems = qp->rq.max_wr * QEDR_MAX_RQE_ELEMENTS_PER_RQE;
+
+ rc = qedr_roce_create_kernel_qp(dev, qp, &in_params,
+ n_sq_elems, n_rq_elems);
+ if (rc)
+ qedr_cleanup_kernel(dev, qp);
return rc;
}
struct ib_udata *udata)
{
struct qedr_dev *dev = get_qedr_dev(ibpd->device);
- struct qed_rdma_create_qp_out_params out_params;
- struct qed_rdma_create_qp_in_params in_params;
struct qedr_pd *pd = get_qedr_pd(ibpd);
- struct ib_ucontext *ib_ctx = NULL;
- struct qedr_ucontext *ctx = NULL;
- struct qedr_create_qp_ureq ureq;
struct qedr_qp *qp;
struct ib_qp *ibqp;
int rc = 0;
if (attrs->srq)
return ERR_PTR(-EINVAL);
- qp = kzalloc(sizeof(*qp), GFP_KERNEL);
- if (!qp)
- return ERR_PTR(-ENOMEM);
-
DP_DEBUG(dev, QEDR_MSG_QP,
- "create qp: sq_cq=%p, sq_icid=%d, rq_cq=%p, rq_icid=%d\n",
+ "create qp: called from %s, event_handler=%p, eepd=%p sq_cq=%p, sq_icid=%d, rq_cq=%p, rq_icid=%d\n",
+ udata ? "user library" : "kernel", attrs->event_handler, pd,
get_qedr_cq(attrs->send_cq),
get_qedr_cq(attrs->send_cq)->icid,
get_qedr_cq(attrs->recv_cq),
get_qedr_cq(attrs->recv_cq)->icid);
- qedr_set_qp_init_params(dev, qp, pd, attrs);
+ qp = kzalloc(sizeof(*qp), GFP_KERNEL);
+ if (!qp) {
+ DP_ERR(dev, "create qp: failed allocating memory\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ qedr_set_common_qp_params(dev, qp, pd, attrs);
if (attrs->qp_type == IB_QPT_GSI) {
- if (udata) {
- DP_ERR(dev,
- "create qp: unexpected udata when creating GSI QP\n");
- goto err0;
- }
ibqp = qedr_create_gsi_qp(dev, attrs, qp);
if (IS_ERR(ibqp))
kfree(qp);
return ibqp;
}
- memset(&in_params, 0, sizeof(in_params));
-
- if (udata) {
- if (!(udata && ibpd->uobject && ibpd->uobject->context))
- goto err0;
-
- ib_ctx = ibpd->uobject->context;
- ctx = get_qedr_ucontext(ib_ctx);
-
- memset(&ureq, 0, sizeof(ureq));
- if (ib_copy_from_udata(&ureq, udata, sizeof(ureq))) {
- DP_ERR(dev,
- "create qp: problem copying data from user space\n");
- goto err0;
- }
-
- rc = qedr_init_user_qp(ib_ctx, dev, qp, &ureq);
- if (rc)
- goto err0;
-
- qedr_init_qp_user_params(&in_params, &ureq);
- } else {
- rc = qedr_init_kernel_qp(dev, qp, attrs, &in_params);
- if (rc)
- goto err0;
- }
-
- qedr_init_qp_in_params_sq(dev, pd, qp, attrs, udata, &in_params);
- qedr_init_qp_in_params_rq(qp, attrs, udata, &in_params);
-
- qp->qed_qp = dev->ops->rdma_create_qp(dev->rdma_ctx,
- &in_params, &out_params);
+ if (udata)
+ rc = qedr_create_user_qp(dev, qp, ibpd, udata, attrs);
+ else
+ rc = qedr_create_kernel_qp(dev, qp, ibpd, attrs);
- if (!qp->qed_qp)
- goto err1;
+ if (rc)
+ goto err;
- qp->qp_id = out_params.qp_id;
- qp->icid = out_params.icid;
qp->ibqp.qp_num = qp->qp_id;
- if (udata) {
- rc = qedr_copy_qp_uresp(dev, qp, udata);
- if (rc)
- goto err2;
-
- qedr_qp_user_print(dev, qp);
- } else {
- qedr_init_qp_kernel_doorbell_sq(dev, qp);
- qedr_init_qp_kernel_doorbell_rq(dev, qp);
- }
-
- DP_DEBUG(dev, QEDR_MSG_QP, "created %s space QP %p\n",
- udata ? "user" : "kernel", qp);
-
return &qp->ibqp;
-err2:
- rc = dev->ops->rdma_destroy_qp(dev->rdma_ctx, qp->qed_qp);
- if (rc)
- DP_ERR(dev, "create qp: fatal fault. rc=%d", rc);
-err1:
- if (udata) {
- qedr_cleanup_user_sq(dev, qp);
- qedr_cleanup_user_rq(dev, qp);
- } else {
- qedr_cleanup_kernel_sq(dev, qp);
- qedr_cleanup_kernel_rq(dev, qp);
- }
-
-err0:
+err:
kfree(qp);
return ERR_PTR(-EFAULT);
return rc;
}
+int qedr_free_qp_resources(struct qedr_dev *dev, struct qedr_qp *qp)
+{
+ int rc = 0;
+
+ if (qp->qp_type != IB_QPT_GSI) {
+ rc = dev->ops->rdma_destroy_qp(dev->rdma_ctx, qp->qed_qp);
+ if (rc)
+ return rc;
+ }
+
+ if (qp->ibqp.uobject && qp->ibqp.uobject->context)
+ qedr_cleanup_user(dev, qp);
+ else
+ qedr_cleanup_kernel(dev, qp);
+
+ return 0;
+}
+
int qedr_destroy_qp(struct ib_qp *ibqp)
{
struct qedr_qp *qp = get_qedr_qp(ibqp);
qedr_modify_qp(ibqp, &attr, attr_mask, NULL);
}
- if (qp->qp_type != IB_QPT_GSI) {
- rc = dev->ops->rdma_destroy_qp(dev->rdma_ctx, qp->qed_qp);
- if (rc)
- return rc;
- } else {
+ if (qp->qp_type == IB_QPT_GSI)
qedr_destroy_gsi_qp(dev);
- }
- if (ibqp->uobject && ibqp->uobject->context) {
- qedr_cleanup_user_sq(dev, qp);
- qedr_cleanup_user_rq(dev, qp);
- } else {
- qedr_cleanup_kernel_sq(dev, qp);
- qedr_cleanup_kernel_rq(dev, qp);
- }
+ qedr_free_qp_resources(dev, qp);
kfree(qp);
projects / platform / kernel / linux-rpi.git / commitdiff